# Gemini 2.5 Pro vs o1

> Gemini 2.5 Pro is the stronger model overall, scoring 44.9 to 40.6 on the Noometry Index.

- Canonical page: https://noometry.com/compare/gemini-2-5-pro-vs-o1
- Last updated: 2026-10-10
- Shared benchmarks: 48

## Summary

- They share 48 benchmarks with published results for both. Gemini 2.5 Pro scores higher in 8 categories and o1 in 2 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Gemini 2.5 Pro leads 55.8 to 41.5.
- The biggest single-benchmark swing is Aider Polyglot: 83.1% for Gemini 2.5 Pro and 61.7% for o1.
- Gemini 2.5 Pro is cheaper at $1.25 / $10 per million input/output tokens, against $15 / $60 for o1.
- Gemini 2.5 Pro accepts more context: 1.05M tokens versus 200K.

## Snapshot

| | Gemini 2.5 Pro | o1 |
|---|---|---|
| Provider | Google | OpenAI |
| Noometry Index | 44.9 | 40.6 |
| Rank | 67 | 140 |
| Context | 1.05M | 200K |
| Input $/M | $1.25 | $15 |
| Output $/M | $10 | $60 |
| Weights | Proprietary | Proprietary |

## Coding

- Gemini 2.5 Pro: 42.8 (#86)
- o1: 45.7 (#64)

| Benchmark | Gemini 2.5 Pro | o1 |
|---|---|---|
| Aider Polyglot | 83.1% | 61.7% |
| WeirdML | 54% | 47.6% |
| LiveBench Coding | 85.9% | 69.7% |
| LMArena Coding | 1452 | 1367 |
| CadEval | 64% | 56% |
| SWE-bench Verified | 57.6% | — |
| SWE-bench Verified (bash only) | 53.6% | — |
| LMArena WebDev | 1227 | — |
| SciCode | 42.8% | — |
| GSO | 3.9% | — |
| ALE-Bench | 785.52 | — |
| AlgoTune | 1.51 | — |
| HumanEval+ | — | 89% |
| MBPP+ | — | 80.2% |

## Agentic & Tool Use

- Gemini 2.5 Pro: 29.1 (#81)
- o1: 24.3 (#111)

| Benchmark | Gemini 2.5 Pro | o1 |
|---|---|---|
| METR Time Horizons | 55.4% | 51.1% |
| Terminal-Bench | 32.6% | — |
| GDPval | 23.3% | — |
| Remote Labor Index | 0.8% | — |
| TheAgentCompany | 30.3% | — |
| τ²-bench Banking | 13.7% | — |
| Cybench | — | 10% |
| DeepResearch Bench | 42.8% | — |
| BALROG | 43.3% | — |
| LMArena Search | 1142 | — |
| Vending-Bench 2 | 573.64 | — |

## Reasoning

- Gemini 2.5 Pro: 28.8 (#85)
- o1: 27.5 (#103)

| Benchmark | Gemini 2.5 Pro | o1 |
|---|---|---|
| SimpleBench | 62.4% | 41.7% |
| ARC-AGI-1 | 41% | 30.7% |
| Chess Puzzles | 20% | 15% |
| EnigmaEval | 5.6% | 5.7% |
| LiveBench Reasoning | 89.8% | 91.6% |
| LMArena Hard Prompts | 1455 | 1372 |
| DTBench | 82.4% | 74.7% |
| LiveBench Data Analysis | 79.9% | 65.5% |
| LMCA | 34.8% | 22.3% |
| Epoch Capabilities Index | 145.32 | 141.92 |
| LiveBench | 82.3% | 75.7% |
| ARC-AGI-2 | 4.9% | — |
| Kagi LLM Benchmark | 70.3% | — |
| CritPt | 2% | — |
| ForecastBench | 61.3 | — |

## Math

- Gemini 2.5 Pro: 31.9 (#191)
- o1: 34.9 (#150)

| Benchmark | Gemini 2.5 Pro | o1 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 24.6% | 14.7% |
| OTIS Mock AIME 2024-2025 | 84.7% | 73.3% |
| LiveBench Math | 90.2% | 80.3% |
| LMArena Math | 1450 | 1388 |
| MATH Level 5 | 95.9% | 94.7% |
| FrontierMath (Feb 2025 set) | 14.1% | 9.3% |
| FrontierMath Tier 4 | 0% | — |
| Omni-MATH | 41.6% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |

## Knowledge

- Gemini 2.5 Pro: 55.8 (#41)
- o1: 41.5 (#101)

| Benchmark | Gemini 2.5 Pro | o1 |
|---|---|---|
| GPQA Diamond | 85.3% | 76.8% |
| Humanity's Last Exam | 21.6% | 8% |
| Confabulations | 10.6% | 11.7% |
| LMArena Expert | 1452 | 1362 |
| SimpleQA Verified | — | 41.1% |
| MMLU-Pro | 86.3% | — |
| Vectara Hallucination Rate | 7% | — |
| GPQA (HELM) | 74.9% | — |

## Multimodal

- Gemini 2.5 Pro: 44.5 (#16)
- o1: 33.6 (#87)

| Benchmark | Gemini 2.5 Pro | o1 |
|---|---|---|
| LMArena Vision | 1263 | 1168 |
| GeoBench | 86% | 80% |
| VPCT | 48% | 37% |
| SpatialViz-Bench | 44.7% | 41.4% |
| LMArena Document | 1421 | — |

## Multilingual

- Gemini 2.5 Pro: 55.5 (#30)
- o1: 48.8 (#137)

| Benchmark | Gemini 2.5 Pro | o1 |
|---|---|---|
| LMArena Non-English | 1452 | 1359 |
| LMArena Chinese | 1507 | 1394 |
| LMArena French | 1473 | 1343 |
| LMArena German | 1487 | 1337 |
| LMArena Japanese | 1462 | 1346 |
| LMArena Korean | 1435 | 1396 |
| LMArena Russian | 1460 | 1356 |
| LMArena Spanish | 1473 | 1345 |

## Instruction Following

- Gemini 2.5 Pro: 75.2 (#71)
- o1: 75.0 (#82)

| Benchmark | Gemini 2.5 Pro | o1 |
|---|---|---|
| LiveBench Instruction Following | 80.6% | 81.5% |
| LMArena Instruction Following | 1436 | 1368 |
| IFEval | 84% | — |

## Long Context

- Gemini 2.5 Pro: 59.7 (#5)
- o1: 50.3 (#9)

| Benchmark | Gemini 2.5 Pro | o1 |
|---|---|---|
| Fiction.LiveBench | 91.7% | 83.3% |
| LMArena Longer Query | 1449 | 1378 |

## Writing & Preference

- Gemini 2.5 Pro: 63.9 (#60)
- o1: 55.8 (#139)

| Benchmark | Gemini 2.5 Pro | o1 |
|---|---|---|
| LMArena Text | 1458 | 1366 |
| LMArena Creative Writing | 1453 | 1347 |
| Short-Story Creative Writing | 83.8% | 70.2% |
| LMArena Multi-Turn | 1453 | 1368 |
| LiveBench Language | 67.8% | 65.4% |
| EQ-Bench Creative Writing | 1421 | — |
| WildBench | 85.7% | — |

## FAQ

### Is Gemini 2.5 Pro better than o1?

Gemini 2.5 Pro is the stronger model overall, scoring 44.9 to 40.6 on the Noometry Index.

### Which is cheaper, Gemini 2.5 Pro or o1?

Gemini 2.5 Pro is cheaper. It lists at $1.25 per million input tokens and $10 per million output tokens; o1 lists at $15 and $60.

### Is Gemini 2.5 Pro or o1 better for coding?

o1 scores higher on coding benchmarks: 45.7 versus 42.8 in the Noometry coding category.

### Which has the bigger context window?

Gemini 2.5 Pro does, with 1.05M tokens against 200K.

### How many benchmarks do Gemini 2.5 Pro and o1 share?

48 benchmarks have published results for both models. Gemini 2.5 Pro has 78 scored results on Noometry and o1 has 52.